I was baptized about 12 years ago when I was 13 I believe. I don't know the exact date because at the time I didn't know I was supposed to keep track, and now I'm dying to find my baptism certificate. Anyway, I was going to post that I never noticed any changes, but that isn't true now that I look back. I think I received the gift of wisdom because at that time my outlook and understanding of the world started to change. Without any guidance though I simply drifted through life with people thinking I was weird

. My mom always told me "People think you're weird and you don't understand them because you're
in the world but you're not
of the world".
Around the time I was baptized I felt the presence of the Holy Spirit all around me. Eventually it faded away though, and from the ages of 15-24 I felt pretty empty. Long story short, I went through a re-awakening and now I feel the Holy Spirit more strongly than ever. I know for sure that I have received Wisdom, but it's much deeper now than it was before.
To answer the second part of your question, I can't help but use wisdom in my day to day life. I don't think people know it's from God, but I try to be as Christ like as I can.